* {
    margin: 0;
    padding: 0;
    list-style: none;
}

a {
    text-decoration: none;
    color: black;
}


.navs li a {
    display: flex;
}

.navs li {
    margin-bottom: 20px;
    border-bottom: 2px solid #f0f0f2;
}


.navs li a .left img {
    width: 178px;
}

.navs li a .left h4 {
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 10px;
}

.navs li a .right h4:hover {
    text-decoration: underline;
}


.header {
    height: 60px;
    padding: 0 20px;
    display: flex;
    align-items: center;
    box-shadow: rgba(0, 0, 0, 0.1) 0 4px 12px;
    /*设置水平对齐方式为两边对齐*/
    justify-content: space-between;
}

.main {
    width: 1200px;
    margin: 20px auto;
}

.main .classes-box {
    margin: 0 20px 10px;
    box-shadow: rgba(99, 99, 99, 0.2) 0 2px 8px 0;
    display: flex;
    padding: 20px;
}

.classes-box li {
    margin-right: 40px;
    color: #555666;
}
.header .right{
    height: 100%;
    display: flex;
    align-items: center;
}
.header .right .func{
    height: 60%;
    display: flex;
    align-items: center;
    padding: 0 10px;
    margin-right: 10px;
    margin-left: 50px;
    font-weight: bold;
    background-color: #c45656;
    color: white;
    border-radius: 10px;
}